I just got a vintage 1887 Prosch Duplex lens & shutter. It's a ~8 inch rapid rectilinear lens with wheel stops. I calculated it to be f8. I think I figured out how to operate the shutter. A squeezy bulb came with it, but it's likely older than I am. Where can I get a new bulb for this lens, and rubber tubing? Surely someone sells it. It's a cool lens. I can't wait to mount it on my Chamonix 045n. Anyone have any idea what the three shutter speeds are? I'm guessing 25-50-100.

Kent in SD